Home / 305,710.10-459,002.55-231,352.10

Finding the Fourth Proportional to 305,710.10, 459,002.55 and 231,352.10

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Solution

The fourth proportional to 305,710.10, 459,002.55 and 231,352.10 is: 347,359.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,710.10 : 459,002.55 = 231,352.10 : x
  2. Step 2: Convert to fraction form
    305,710.10/459,002.55 = 231,352.10/x
  3. Step 3: Cross multiply
    305,710.10x = 459,002.55 × 231,352.10
  4. Step 4: Simplify right side
    305,710.10x = 106,191,203,847.86
  5. Step 5: Solve for x
    x = 106,191,203,847.86/305,710.10
  6. Step 6: Final answer
    x = 347,359.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.